girl-ish. >> it is. it high school. >> reporter: or perhaps -- a james bond movie. some salons keep more tabs on you than the cia. receptionists may make secret notations about you, like, "poor tipper," "bad attitude" or, the kiss of death, "always late." if you have a client who is constantly late, they [ bleep ] your whole day. >> reporter: you're going to take it out on me? >> some people do. >> reporter: how do they take it out? >> here's the blow drier, here's a brush, blow dry yourself. >> reporter: wait, blow dry your own hair? what happened to the customer being untouchable? >> it's crazy, i know. but that's the reality. >> reporter: but the dirtiest secret of all -- so, um, hair salons and sanitation, are they clean or dirty? >> dirty. one client leaves, another one walks in. that brush gets reused again. >> reporter: the brushes never get cleaned? >> some stylists brushes, if they get cleaned at the end of the week, it will be great. i've seen some horrifying brushes with all kinds of color hair in them.